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Online Task Remapping Strategies for Fault-tolerant Network-on-Chip Multiprocessors

Informazioni aggiuntive

Autori
Derin O., Kabakci D., Fiorin L.
Tipo
Contributo in atti di conferenza
Anno
2011
Lingua
Inglese
Abstract
As CMOS technology scales down into the deep submicron domain, the aspects of fault tolerance in complex Networks-on-Chip (NoCs) architectures are assuming an increasing relevance. Task remapping is a software based solution for dealing with permanent failures in processing elements in the NoC. In this work, we formulate the optimal task mapping problem for mesh-based NoC multiprocessors with deterministic routing as an integer linear programming (ILP) problem with the objective of minimizing the communication traffic in the system and the total execution time of the application. We find the optimal mappings at design time for all scenarios where single-faults occur in the processing nodes. We propose heuristics for the online task remapping problem and compare their performances with the optimal solutions.
Atti di conferenza
NOCS ''11: Proceedings of the Fifth ACM/IEEE International Symposium on Networks-on-Chip
Mese
maggio
Pagina inizio
1
Pagina fine
8
Luogo conferenza
Pittsburgh, Pennsylvania, USA
Parole chiave
adaptivity, fault tolerance, kahn process networks (KPN), mapping, network-on-chip (NoC), self-adaptivity